Reverse Phone Lookup by State - All 50 State Guides

Lookup A Caller Editorial Team · Updated March 26, 2026

Every state has its own area code map, consumer protection laws, and telecom regulations that affect how reverse phone lookups work. A call from a 713 number in Texas is governed by different state agencies and complaint processes than a call from a 212 number in New York. Our state-by-state guides break down the specifics - area codes, regulatory agencies, no-call list rules, and practical steps for identifying unknown callers - so you get actionable information tailored to where the call originates.

Click any state on the map below, or scroll down to browse all 50 guides alphabetically.

Browse All 50 State Guides

Each guide covers the state's area codes, consumer protection agencies, no-call list rules, and step-by-step instructions for running a reverse phone lookup on numbers from that state.

Alabama5 area codesView guide → Alaska1 area codeView guide → Arizona5 area codesView guide → Arkansas4 area codesView guide → California36 area codesView guide → Colorado5 area codesView guide → Connecticut3 area codesView guide → Delaware1 area codeView guide → Florida18 area codesView guide → Georgia9 area codesView guide → Hawaii1 area codeView guide → Idaho1 area codeView guide → Illinois14 area codesView guide → Indiana7 area codesView guide → Iowa4 area codesView guide → Kansas4 area codesView guide → Kentucky5 area codesView guide → Louisiana5 area codesView guide → Maine1 area codeView guide → Maryland5 area codesView guide → Massachusetts6 area codesView guide → Michigan8 area codesView guide → Minnesota5 area codesView guide → Mississippi3 area codesView guide → Missouri6 area codesView guide → Montana1 area codeView guide → Nebraska2 area codesView guide → Nevada2 area codesView guide → New Hampshire1 area codeView guide → New Jersey7 area codesView guide → New Mexico2 area codesView guide → New York19 area codesView guide → North Carolina7 area codesView guide → North Dakota1 area codeView guide → Ohio11 area codesView guide → Oklahoma3 area codesView guide → Oregon3 area codesView guide → Pennsylvania10 area codesView guide → Rhode Island1 area codeView guide → South Carolina4 area codesView guide → South Dakota1 area codeView guide → Tennessee6 area codesView guide → Texas27 area codesView guide → Utah2 area codesView guide → Vermont1 area codeView guide → Virginia8 area codesView guide → Washington5 area codesView guide → West Virginia1 area codeView guide → Wisconsin5 area codesView guide → Wyoming1 area codeView guide →

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About this guide

Researched and maintained by the Lookup A Caller editorial team. Each state guide is reviewed for accuracy and updated as area codes and consumer protection laws change. About our editorial process.